Defender Landy D110 300TDi tuning for power




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  1. #1
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    Default Landy D110 300TDi tuning for power

    Am looking for advice on upping HP and Torque on a 300 TDi D110, without blowing the engine - ie what works, what mod should I do first and what should I expect in power and economy improvements etc.

    Have heard of exhaust mods, chip mods etc.


    Am based Joburg if your advice is to go consult someone on this.

  2. #2
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    Not tuning, but I've recently had the front silencer on mine replaced with a straight pipe. It does make a difference. Turbo spools up quicker and a little more grunt at low revs. Cheap too, at your nearest exhaust centre.

    ...and it sounds great too, lekker deep tone added to the exhaust without being any noisier (not that you could get much louder than a tdi at full chatter). In fact, I'm probably going to remove the back box as well.
    Erin Bosch (082 342 1909)
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    2001 Land Rover Defender 130 TD5 D/C with everything

  3. #3
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    you can set the turbo in increase the kilowatt output of the motor.
    300 TDi 90, OME 2" lift, OME steering damper, steering and diff guards, removed front and rear anti roll bar, snorkel, extra fuel tank, roof rack, running on KM2's


  4. #4
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    Also tuning the diesel pump. Renier knows how to do that. Something about adjusting screws and fuel mixture settings. Bigger intercooler is a more costly option, but possible. As soon a you start with that stuff, get the dieselpump set by dynatuning

    Chipping will not be possible. The 300 Tdi is as analouge, non electric mechanical as you can get. They dont make engines like that any more.

    There was a thread on 300 Tdi on this forum. Also LR4x4.com has a lot of threads and PDF docs for a step by step how to tune the dieselpump
    Sold Land Rover 110 Tdi Hard top.
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  5. #5
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    Quote Originally Posted by trance-porter View Post
    you can set the turbo in increase the kilowatt output of the motor.
    the 300TDI already runs at 1bar max reliable boost.
    the 200ti can have the turbo boost pressure upped to 1bar (0.8 bar std).

    i have seen a lot of threads all over the web that shows you how to up the performance on the 200 and 300tdi. e.g :
    http://forums.lr4x4.com/index.php?showtopic=31

    like Imvubu said (take off the centre silencer box and replace with a straight through pipe).
    that helps and make sure your intercooler hoses are all 100%...
    if they feel soft or look old, rather replace them with new silicone hoses...

    i bought all my silicone intercooler hoses from media hydraulics, R250 for a 90deg elbow x3 and elbow long enough to cut a piece off for the 1 straight pipe..

    i tried Waynes 4x4 for the hoses.. he quoted me R550 each... bloody rip off.
    have a look here , the guy is selling a new silicone hose kit for the 300tdi:
    http://www.lroc.org.za/classifieds.asp?type=s&id=6
    Silicone turbo hose set for 300tdi discovery. Bought from Alisport UK and never used. R500. Call Dale 0797591015.
    seems like a bargain.
    '94 Land Rover Defender 110, 200tdi
    *Injector pump tweaked
    *1Bar Boost
    *EGT and Boost gauge added
    *VNT Turbo
    *Full width intercooler
    *Straight through 63mm exhaust pipe

    2008 BMW G650 Xchallenge


    COFFEE.EXE Missing - Insert Cup and Press Any Key

  6. #6
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    You can do a few basic things which I believe wont compromise the motor in terms of reliability.

    1) I removed both silencers on mine but after a test drive did not like the sound coming out at certain revs so added back in a very small (free-flow, not sure what they call it) box at the rear. This just made the sound acceptable for me but still felt good (turbo definitely spools up quicker).
    2) Get someone to tweak the diesel injector pump but still keeping it within limits as far as EGT's (exhaust gas temperatures) is concerned. Just for piece of mind after my tweaking I've fitted the MADMAN EGT guage (small one which only measures EGT, Engine running hours and battery Volts) which I bought from LandyOnline for just over R300.
    3) At the same time as the above let them make sure the turbo boost is actually 1 bar. Mine was only 0.96 max.

    The result of the above is that the output on the wheels improved by +/- 30%. During the recent LROC meeting at SAC Centurion I achieved 285.3 Nm @ 2000 rpm. Not bad for a 300tdi I would say.

    Best of all my AVE diesel consumption used to be 8.5 km/liter and after the tweak it increased to AVE 9 km/liter.

  7. #7
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    Does this also apply to the Disco 300tdi?
    Thanks.
    Ze'
    '98 Disco 300 Tdi "Stony"
    Ironman suspension, dual tanks/batteries, rr,rtt,snorkel, etc.....

  8. #8
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    I mean the exhaust part of it.
    Ze'
    '98 Disco 300 Tdi "Stony"
    Ironman suspension, dual tanks/batteries, rr,rtt,snorkel, etc.....

  9. #9
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    Quote Originally Posted by Ze' View Post
    I mean the exhaust part of it.
    You mean removing the front silencer? If so, then yes. Applies to any engine. Makes a bit more noise though.
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  10. #10
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    Replacing the silencer with a straight through pipe definetaly helps with low down torque. I adjusted my fuel pump according to the descriptions widely available on the web and fitted an EGT, if temps go high you can just back of the settings a bit. All in all the difference was well worth the time spent adjusting the pump.

    BEWARE: Don't even think of adjusting the fuel pump without an EGT, you might cook your motor if you adjust blindly.
    Started with a SIII 2.25d
    then a 2 dr V8 Range rover
    then a 2.4 DC Hilux
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    then a Disco 1 V8
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  11. #11
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    Quote Originally Posted by Rocket View Post
    Replacing the silencer with a straight through pipe definetaly helps with low down torque. I adjusted my fuel pump according to the descriptions widely available on the web and fitted an EGT, if temps go high you can just back of the settings a bit. All in all the difference was well worth the time spent adjusting the pump.

    BEWARE: Don't even think of adjusting the fuel pump without an EGT, you might cook your motor if you adjust blindly.

    +1

    the EGT guage is a must in order to track changes you have made , in order not to blow it all up ;-)
    i have to date overtuend the main power screw.. truck goes like a batt out of hell but EGT's climb through the roof.
    i have now detuned it a bit according to EGT's and driving the truck uphills etc.

    i would say an EGT guage for even a std untweaked truck is a must..
    its very easy to drive it into the ground just to reach the top of long uphills etc.

    all the above tweaking and exhaust changes is applicable to disco and defender TDI (200 + 300).
    '94 Land Rover Defender 110, 200tdi
    *Injector pump tweaked
    *1Bar Boost
    *EGT and Boost gauge added
    *VNT Turbo
    *Full width intercooler
    *Straight through 63mm exhaust pipe

    2008 BMW G650 Xchallenge


    COFFEE.EXE Missing - Insert Cup and Press Any Key

  12. #12
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    Hi Cobus,
    the egt monitor you mention,what gauge are you using as the landyonline only shows probe alone for R300 as i am keen to fit same to my tdi.
    Alann
    disco 1 300tdi
    defender 89 csw v8

  13. #13
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    Sorry Allan

    Don't know how I made that kind of mistake. You're right the EGT1 guage itself was R1 085.64

    Sorry again.

  14. #14
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    Hi Cobus,no problem just checking.thanks Alann
    disco 1 300tdi
    defender 89 csw v8

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